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DR. WILLIAM S SASTRY M.D.
NPI 1699845859
Psychiatry & Neurology - Psychiatry in Palo Alto, CA

Active since November 08, 2006Opted out of Medicare · through Aug 24, 2026
2425 PARK BLVD, SUITE B-102, PALO ALTO, CA 94306(650) 814-9064(650) 561-4752 Get Directions Write a Review

NPPES record last updated: July 17, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William S Sastry M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM S SASTRY M.D. (NPI 1699845859) is an individual psychiatry provider in Palo Alto, California, licensed in California (A89301) and active in the NPI registry since November 2006. He has opted out of Medicare through August 24, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1699845859
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. WILLIAM S SASTRYCredential: M.D.
Location Address2425 PARK BLVD, SUITE B-102Palo Alto, CA 94306-1931
Mailing AddressPo Box 50875Palo Alto, CA 94303-0672 · (650) 814-9064 · Fax (650) 561-4752
Phone(650) 814-9064
Fax(650) 561-4752
Sole ProprietorYes
Enumeration DateNovember 8, 2006
Last NPPES UpdateJuly 17, 2014
✔ NPI 1699845859 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A89301
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedPsychiatry & Neurology · Forensic PsychiatryTaxonomy 2084F0202X · License A89301 (CA)
Also ListedPsychiatry & Neurology · Addiction PsychiatryTaxonomy 2084P0802X · License A89301 (CA)
Also ListedPsychiatry & Neurology · Geriatric PsychiatryTaxonomy 2084P0805X · License A89301 (CA)
2425 PARK BLVD, Palo Alto, CA 94306
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. William S Sastry M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 24, 2016 through August 24, 2026.

Opt-Out Effective DateAugust 24, 2016
Opt-Out In Effect ThroughAugust 24, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94306 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$206.04 typical visit price
range $70.37 – $206.04
Typical copayment $51.51 (range $17.59 – $51.51)
Most-billed visit code 99205
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARCI KAUFMAN
Social Worker (Clinical)
2425 PARK BLVD, SUITE #B102
PALO ALTO, CA 94306
Santa Clara County (516) 996-6693
LESLEY SEEGER LCSW
Social Worker (Clinical)
2425 PARK BLVD, SUITE B-102
PALO ALTO, CA 94306
Santa Clara County (650) 327-7048
MARCI KAUFMAN LICENSED CLINICAL SOCIAL WORKER INC.
Social Worker (Clinical)
2425 PARK BLVD, SUITE #B102
PALO ALTO, CA 94306
Santa Clara County (516) 996-6693

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Sastry's NPI number?

The NPI number for William Sastry is 1699845859. It was assigned to this individual provider in the NPPES registry on November 8, 2006.

Where is William Sastry located?

William Sastry practices at 2425 Park Blvd Suite B-102, Palo Alto, CA 94306. The listed phone number is (650) 814-9064.

What is William Sastry's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is William Sastry enrolled in Medicare?

No. William Sastry has opted out of Medicare through August 24, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for William Sastry was last updated on July 17, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.